CN219331585U - Angle adjusting device for endoscope tip - Google Patents

Abstract

The utility model provides an angle adjusting device for a front end part of an endoscope, belonging to the technical field of endoscope equipment; the endoscope comprises an adjusting base, a damping adjusting device and a rotating handle, wherein the adjusting base is movably arranged in the endoscope and is used for being connected with a steering traction mechanism, the rotating handle is connected with the adjusting base, and the damping adjusting device is arranged on the adjusting base and is used for limiting the adjusting base to rotate; the device is characterized in that a damping adjusting device is arranged on an adjusting base for driving the steering traction mechanism to limit the rotation of the adjusting base, so that the position of the adjusting base can be effectively fixed after the angle of the front end is adjusted, and the front end is prevented from changing direction and injuring a patient due to false collision; the damping adjusting device and the rotary handle are arranged on the same side, so that the structure is simplified, the operation is convenient for a user, and the working efficiency is improved.

Description

Angle adjusting device for endoscope tip

Technical Field

The utility model relates to the technical field of endoscope equipment, in particular to an angle adjusting device for a front end part of an endoscope.

Background

Endoscopes are detection instruments that integrate traditional optics, ergonomics, precision machinery, modern electronics, mathematics, software, etc., and can be accessed orally into the stomach or through other natural tunnels. Since an X-ray-invisible lesion can be seen by an endoscope, the endoscope plays a very important role in medical diagnosis. The endoscope is composed of a tip, an insertion tube, an operation portion, and a connection portion. The front end and the insertion tube enter through a natural cavity of a human body, a doctor holds the operation part to operate, the position of the front end of the electronic soft mirror in the human body is controlled, the connecting part is connected with the camera shooting light source system, and an image signal acquired by the front end is transmitted out of an image.

In the working process, the front end and the insertion tube enter from the natural cavity of the human body, the insertion tube comprises a flexible tube, a front end part and a camera or an electronic soft mirror, the front end part usually needs to twist under the control of an operation part in order to observe the condition in the human body, the front end part refers to the snake bone or PE tube part of the endoscope, and the front end of the snake bone or PE tube is provided with a lens, a liquid injection pipeline and the like; the steering traction mechanism is usually arranged in the flexible pipe and connected with the snake bone or PE pipe at the front end part, and the operation part controls the steering traction mechanism to change the bending direction and angle of the snake bone or PE pipe, so that the front end part and the camera are driven to be bent to achieve a proper angle for observation; the existing angle fixing structure is not accurate enough, and the final viewing angle is affected.

For example, patent application number 202023350636.9 discloses a bending control mechanism provided to an operation portion of an endoscope for adjusting a bending direction of a bending portion of the endoscope, wherein the operation portion includes a housing, the bending control mechanism includes a bending lever, a winding wheel, a driving rope, and a first damper provided in abutment between the winding wheel and the housing; when the winding wheel rotates to any position, the first damping piece can prevent the winding wheel from rotating relative to the shell; the device is provided with a damping piece with a complex structure to enable proper friction force to exist between the winding wheel and the shell, and the winding wheel can be prevented from rotating relative to the shell after the winding wheel rotates; however, the whole structure is complex, and the cost and the volume are increased when the endoscope is put into a precise instrument endoscope.

The utility model patent application number 202011559371.5 discloses an angle-adjustable endoscope, which comprises an insertion tube structure and an adjusting structure for controlling the rotation and bending of the insertion tube structure, wherein the insertion tube structure is connected with the adjusting structure, and the adjusting structure is arranged on a mounting seat and a shell. The adjusting structure comprises a first adjusting structure for adjusting the upper and lower bending of the snake bone and a second adjusting structure for adjusting the left and right angles of the snake bone; the device adopts two adjusting structures to control the angle of the insertion tube snake bone, the angle limiting mechanism of the first adjusting structure has a limiting effect on the angle disc, but the limiting effect on the angle disc is provided with a fixed rotation range, when the second limiting pin touches the angle limiting clamp, the second limiting pin limits the angle, and the angle limiting device can effectively prevent the user from rotating too much, but also limits the bending angle of the adjusting front end part of the user to a certain extent, so that the problem that the requirement on the bending angle under different conditions is difficult to meet exists; moreover, the arranged angle positioning mechanism is easy to slide in a mode of encircling and locking the first main shaft, and an operator can make the elastic sheet difficult to realize effective locking on the first main shaft after repeatedly using the angle positioning mechanism, so that the condition of sliding exists.

Disclosure of Invention

In order to overcome the technical problems, the utility model provides an angle adjusting device for the front end part of an endoscope to solve the problems that the existing angle fixing mechanism is complex and inconvenient to operate by one hand;

in order to solve the technical problems, the technical scheme of the utility model is as follows: the angle adjusting device for the front end part of the endoscope comprises an adjusting base, a damping adjusting device and a rotating handle, wherein the adjusting base is movably arranged in an endoscope handle shell and is connected with a steering traction mechanism, the rotating handle is connected with the adjusting base and is used for driving the adjusting base to rotate relative to the endoscope handle shell, and the damping adjusting device is arranged on the adjusting base and is used for limiting the adjusting base to rotate.

In the above scheme, the device adopts the adjustment base to rotate to drive the steering traction mechanism to tighten up, so that the front end part turns to one side towards tightening up to adjust the torsion angle adjustment of the front end part, the adjustment base drives the adjustment base to rotate in a certain direction through the rotating handle, namely anticlockwise or clockwise, the adjustment base further drives the steering traction mechanism to drive the front end part to twist up, and when the adjustment base needs to be limited to rotate, the damping adjustment device is adopted to limit the adjustment base, so that the fixation of the torsion angle of the front end part can be completed.

In a specific implementation process, after the device is arranged in an endoscope, two ends of two steering traction mechanisms are respectively connected with two sides of an adjusting base, the other ends of the steering traction mechanisms are arranged in the front end parts and are connected with the front end parts, and a user drives the adjusting base to rotate by rotating a handle, so that one side of a steel wire rope is tightened, and the front end parts are twisted towards one side; adjusting the rotating handle to change the rotating direction of the adjusting base, so that the steel wire rope on the other side is tightened, and the front end part is twisted towards the other side; after the adjustment is completed, the damping adjusting device is used for limiting the position of the adjusting base, so that the adjusting base is prevented from rotating, and the position is fixed.

Preferably, the damping adjusting device comprises an elastic piece, a sleeve and a damping adjusting piece, the adjusting base is provided with a synchronous mandrel, the elastic piece and the sleeve are sequentially sleeved on the synchronous mandrel, and the damping adjusting piece is arranged on the endoscope handle shell and is connected with the sleeve to push the sleeve to extrude the elastic piece.

Preferably, the elastic member is a belleville spring.

Preferably, the damping adjusting piece is rotationally connected with the endoscope handle shell, one side of the sleeve, which is close to the damping adjusting piece, is provided with an inner sleeve and a plurality of steps, the steps are arranged around the inner sleeve, the steps are all obliquely arranged around the same direction from low to high by taking the inner sleeve as the center, the damping adjusting piece is sleeved on the inner sleeve, and a plurality of ladder teeth which are matched with the steps are arranged around the outer wall of the damping adjusting piece.

Preferably, the steps and the ladder teeth are uniformly provided with four steps.

Preferably, the synchronous mandrel is provided with a hollow groove, and one end of the rotating handle sequentially penetrates through the damping adjusting piece, the inner sleeve and the elastic piece to be inserted into the hollow groove.

Preferably, the empty slot is a special-shaped hole, and the end part of the rotating handle is matched with the special-shaped hole.

Preferably, the special-shaped hole is one of a diamond hole, a square hole and a hexagonal hole.

Preferably, the damping adjustment member is provided with an adjustment handle.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

the utility model provides an angle adjusting device for the front end part of an endoscope, which is characterized in that a damping adjusting device is arranged on an adjusting base for driving a steering traction mechanism to limit the rotation of the adjusting base, so that the position of the front end part can be effectively fixed after the angle adjustment of the front end part is finished, and the front end part is prevented from changing direction and injuring a patient due to false collision; the damping adjusting device and the rotary handle are arranged on the same side, so that the structure is simplified, the operation is convenient for a user, and the working efficiency is improved.

Drawings

FIG. 1 is a front view of the present utility model assembled with an endoscope handle housing;

FIG. 2 is an assembled side view of the present utility model with an endoscope handle housing;

FIG. 3 is a schematic illustration of the utility model with the housing removed;

FIG. 4 is a schematic cross-sectional view;

FIG. 5 is an exploded view of a portion of the structure of the present utility model;

wherein: 100. an endoscope handle housing; 1. adjusting the base; 2. an elastic member; 3. a sleeve; 4. damping adjusting piece; 5. rotating the handle; 101. synchronizing the mandrel; 102. a hollow groove; 301. a step; 302. an inner sleeve; 401. ladder teeth; 402. the handle is adjusted.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and that "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features being referred to; nor does it represent the importance of the components and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present utility model.

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

Example 1:

as shown in fig. 1 to 5, the angle adjusting device for the front end portion of the endoscope comprises an adjusting base 1, a damping adjusting device and a rotating handle 5, wherein the adjusting base 1 is at least partially arranged in an endoscope handle shell 100 and is used for being connected with a steering traction mechanism, the steering traction mechanism can be a steel wire, the rotating handle 5 is connected with the adjusting base 1, the rotating handle 5 is used for driving the adjusting base 1 to rotate relative to the endoscope handle shell 100 so as to drive the steering traction mechanism to carry out directional adjustment, thereby leading the front end portion of the endoscope to carry out targeted rotation adjustment angle, the damping adjusting device is arranged on the adjusting base 1 and is used for limiting the rotation of the adjusting base 1, specifically, after the damping adjusting device is adopted, the adjusting base 1 can be prevented from rotating or a larger acting force is required to rotate the adjusting base 1 to a smaller extent, the situation that the adjusting base 1 rotates due to error touch is prevented, but the accurate adjustment operation of an operator is not influenced; on the other hand, the damping adjustment device is also intended to give the operator a feedback signal during the adjustment of the angle of the tip portion.

The device adopts the adjustment base 1 to rotate to drive the steering traction mechanism to tighten, so that the front end part of the endoscope turns towards the tightening side to adjust the torsion angle adjustment of the front end part, the adjustment base 1 drives the adjustment base 1 to rotate towards a certain direction through the rotation handle 5, namely anticlockwise or clockwise, the adjustment base 1 further drives the steering traction mechanism to drive the front end part to twist, and when the adjustment base 1 needs to be limited to rotate, the adjustment base 1 is limited by adopting the damping adjustment device, so that the relative fixation of the torsion angle of the front end part can be completed.

In a specific implementation process, after the device is assembled with the endoscope handle shell 100, the steering traction mechanism is a group of two traction steel wires, two ends of the steering traction mechanism are respectively connected with two sides of the adjusting base 1, the other end of the steering traction mechanism is arranged in the front end part, and a user drives the adjusting base 1 to rotate by rotating the handle 5, so that the steel wires on one side are tightened, and the front end part is twisted towards one side; adjusting the rotating handle to change the rotating direction of the adjusting base 1, so that the steel wire on the other side is tightened, and the front end part is twisted towards the other side; after the adjustment is completed, the damping adjustment device is used for limiting the position of the adjustment base 1, so that the adjustment base is prevented from rotating or can slightly rotate only by larger acting force, and the position is relatively fixed.

As shown in fig. 1 to 5, the damping adjustment device comprises an elastic member 2, a sleeve 3 and a damping adjustment member 4, the adjustment base 1 is provided with a synchronous mandrel 101, the elastic member 2 and the sleeve 3 are sequentially sleeved on the synchronous mandrel 101, the damping adjustment member 4 is movably mounted on an endoscope handle shell 100, and one end of the damping adjustment member 4 is connected with the sleeve 3 and used for pushing the sleeve 3 to squeeze the elastic member 2.

In a specific implementation process, after the device is arranged in an endoscope, two ends of two steering traction mechanisms are respectively connected with two sides of an adjusting base 1, the other ends of the steering traction mechanisms are arranged in the front end parts, when a damping adjusting piece 4 does not push a sleeve 3, an elastic piece 2 is in an extending state, and the adjusting base 1 is not under the pressure of the elastic piece 2 and can rotate freely; the user rotates the adjusting base 1 by rotating the handle 5, so that the steel wire rope on one side is tightened, and the front end part is twisted towards one side; adjusting the rotating handle to change the rotating direction of the adjusting base 1, so that the steel wire rope on the other side is tightened, and the front end part is twisted towards the other side;

after the adjustment is finished, the sleeve 3 is pushed to move towards the direction of the elastic piece by the damping adjusting piece 4, the elastic piece 2 is gradually compressed, the elastic piece 2 is deformed after being pressed by the sleeve 3, and the elastic force generated in the deformation process is applied to the adjustment base 1, so that the adjustment base 1 is locked; prevent it from rotating and finish the position fixing.

Example 2:

as shown in fig. 1-5, on the basis of embodiment 1, a damping adjusting member 4 is rotatably connected with an endoscope handle housing 100, one side of a sleeve 3, which is close to the damping adjusting member 4, is provided with an inner sleeve 302 and a plurality of steps 301, the steps 301 are arranged around the inner sleeve 302, the steps 301 are all obliquely arranged from low to high around the inner sleeve 302 in the same direction, the damping adjusting member 4 is sleeved on the inner sleeve 302, and a plurality of ladder teeth 401 matched with the steps 301 are arranged around the outer wall of the damping adjusting member 4.

In the concrete implementation process, after the device is arranged in an endoscope, two ends of two steering traction mechanisms are respectively connected with two sides of the adjusting base 1, the other ends of the steering traction mechanisms are arranged in the front end parts,

when the ladder teeth 401 of the damping adjusting piece 4 are positioned at the lowest part of the steps 301, the damping adjusting piece 4 does not push the sleeve 3, the elastic piece 2 is in an extending state, the adjusting base 1 is not under the pressure of the elastic piece 2, and the damping adjusting piece can freely rotate; the user rotates the adjusting base 1 by rotating the handle 5, so that the steel wire rope on one side is tightened, and the front end part is twisted towards one side; adjusting the rotating handle to change the rotating direction of the adjusting base 1, so that the steel wire rope on the other side is tightened, and the front end part is twisted towards the other side;

after the adjustment is finished, the sleeve 3 is pushed to move towards the elastic piece through the damping adjustment piece 4, namely the damping adjustment piece 4 is rotated to enable the damping adjustment piece to move towards the direction of the step 301 which is obliquely arranged from low to high, the single ladder tooth 401 and the single step 301 at the corresponding positions are gradually extruded, the sleeve 3 is gradually pressed against the elastic piece 2 in the process that the lowest position of the step 301 reaches the highest position of the step 301, the elastic piece 2 is pressed by the sleeve 3, deformation is generated, and elastic force generated in the deformation process is applied to the adjustment base 1, so that the adjustment base 1 is locked; prevent it from rotating and finish the position fixing.

Example 3:

as shown in fig. 1-5, on the basis of example 2,

in a further embodiment, the synchronizing mandrel 101 is provided with a hollow groove 102, one end of the rotating handle 5 sequentially passes through the damping adjustment member 4, the inner sleeve 302 and the elastic member 2 to be inserted into the hollow groove 102, and the rotating handle 5 and the damping adjustment member 4 are arranged on the same side to facilitate the operation of a user.

In a further embodiment, the empty slot 102 is a special-shaped hole, the end part of the rotating handle 5 is matched with the special-shaped hole, the rotating handle 5 is not in a circular special shape, so that the empty slot 102 and the adjusting base 1 can be driven to rotate during rotation, the rotating handle 5 and the adjusting base 1 can be movably connected, and the adjusting base 1 can be conveniently taken out and replaced, so that the rotating handle 5 drives the adjusting base 1 to rotate more stably;

the special-shaped holes are one of diamond holes, square holes and hexagonal holes.

The bolt is arranged in the adjusting base 1, penetrates through the empty groove 102 and is in threaded connection with the handle 5, and the whole structure is firmer and more stable under the condition that rotation is not affected.

In a further embodiment, the steps 301 and the ladder teeth 401 are uniformly arranged with four, and 4 pressing elastic members 2 which can meet the accuracy of the sleeve 3 are uniformly arranged, so that the position deviation is prevented.

In a further embodiment, the damper adjustment member 4 is provided with an adjustment knob 402 to facilitate rotation of the damper adjustment member 4.

In a further embodiment, the turning handle 5 is L-shaped and has one end bent to the side of the endoscope handle housing 100, the damping adjustment member 4 is located above the endoscope housing 100, one end connected to the turning handle 5 and the adjustment base 1 is located in one direction, the turning handle 5 is L-shaped, and the other end is bent to the side of the endoscope handle housing 100, so that the damping adjustment member 4 and the turning handle 5 do not affect each other when they are turned, and the operation is convenient.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (9)

1. The angle adjusting device for the endoscope front end part is characterized in that: the adjustable damping device comprises an adjusting base (1), a damping adjusting device and a rotating handle (5), wherein the adjusting base (1) is movably arranged in an endoscope handle shell (100) and is used for being connected with a steering traction mechanism, the rotating handle (5) is connected with the adjusting base (1) and is used for driving the adjusting base (1) to rotate relative to the endoscope handle shell (100), and the damping adjusting device is arranged on the adjusting base (1) and is used for limiting the adjusting base (1) to rotate;

the damping adjusting device comprises an elastic piece (2), a sleeve (3) and a damping adjusting piece (4), wherein the adjusting base (1) is provided with a synchronous mandrel (101), the elastic piece (2) and the sleeve (3) are sequentially sleeved on the synchronous mandrel (101), and the damping adjusting piece (4) is movably mounted on an endoscope handle shell (100) and one end of the damping adjusting piece is connected with the sleeve (3) to push the sleeve (3) to extrude the elastic piece (2).

2. The angle adjustment device for a distal end portion of an endoscope according to claim 1, wherein: the elastic piece (2) is a belleville spring.

3. The angle adjustment device for a distal end portion of an endoscope according to claim 1, wherein: the damping adjusting piece (4) is rotationally connected with the endoscope handle shell (100), one side of the sleeve (3) close to the damping adjusting piece (4) is provided with an inner sleeve (302) and a plurality of steps (301), the steps (301) are arranged around the inner sleeve (302), the steps (301) are all arranged around the same direction from low to high in an inclined mode by taking the inner sleeve (302) as the center, the damping adjusting piece (4) is sleeved on the inner sleeve (302), and a plurality of ladder teeth (401) matched with the steps (301) are arranged on the outer wall of the damping adjusting piece (4) in a surrounding mode.

4. The angle adjustment device for a distal end portion of an endoscope according to claim 3, wherein: the steps (301) and the ladder teeth (401) are uniformly arranged with four steps.

5. The angle adjusting device for a distal end portion of an endoscope according to any one of claims 1 to 4, wherein: the synchronous mandrel (101) is provided with a hollow groove (102), and one end of the rotating handle (5) sequentially penetrates through the damping adjusting piece (4), the inner sleeve (302) and the elastic piece (2) to be inserted into the hollow groove (102).

6. The angle adjustment device for a distal end portion of an endoscope according to claim 5, wherein: the empty groove (102) is a special-shaped hole, and the end part of the rotary handle (5) is matched with the special-shaped hole.

7. The angle adjustment device for a distal end portion of an endoscope according to claim 6, wherein: the special-shaped holes are one of diamond holes, square holes and hexagonal holes.

8. The angle adjustment device for a distal end portion of an endoscope according to claim 7, wherein: the damping adjusting piece (4) is provided with an adjusting handle (402).

9. The angle adjustment device for a distal end portion of an endoscope according to claim 8, wherein: the turning knob (5) is L-shaped and has one end bent to the side of the endoscope handle housing (100).

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